NZ Transport Agency Waka Kotahi advises of the following closures for motorway improvements. Work delayed by bad weather will be completed at the next available date, prior to Friday, 16 August 2024. Unless otherwise stated, closures start at 9pm and finish at 5am. Traffic management may be in place before the advertised closure times for the mainline. NORTHERN MOTORWAY (SH1)Southbound lanes between Orewa off-ramp and Silverdale on-ramp, 14-15 AugustOrewa southbound on-ramp, 14-15 AugustMillwater southbound on-ramp, 14-15 AugustNorthbound lanes between Silverdale off-ramp and Orewa on-ramp, 14-15 August (approx. 10:00pm to 5:00am)Silverdale northbound on-ramp, 14-15 AugustSouthbound lanes between Silverdale off-ramp and Oteha Valley Road on-ramp, 11 AugustSilverdale southbound on-ramp, 11 AugustOnewa Road northbound off-ramp, 12-13 August (approx. 10:00pm to 5:00am)Stafford Road northbound off-ramp, 12-13 August (approx. 10:00pm to 5:00am)Curran Street northbound on-ramp, 12-13 AugustCENTRAL MOTORWAY JUNCTION (CMJ)Northbound lanes between Symonds Street off-ramp and Fanshawe Street on-ramp, 12-13 August (approx 10:00pm to 5:00am)Wellington Street northbound on-ramp, 12-13 AugustSH1 northbound to SH16 westbound link, 12-13 August (approx. 10:00pm to 5:00am)Eastbound lanes between Nelson Street (SH16) off-ramp and Fanshawe Street on-ramp, 12-13 August (approx 10:00pm to 5:00am)SH1 southbound to SH16 (Port) eastbound link, 14 August (approx. 10:00pm to 5:00am)SH16 eastbound to SH1 northbound link, 14 August (approx. 10:00pm to 5:00am)SH16 eastbound to SH1 southbound link, 14 August (approx. 10:00pm to 5:00am)Eastbound lanes between Wellesley Street East (SH1) off-ramp and Alten Road, 11 August (approx. 10:00pm to 5:00am)SH1 northbound to SH16 eastbound (Port) link,11 August (approx. 10:00pm to 5:00am)SH1 northbound to SH16 (Port) eastbound link, 15 August ((approx. 10:00pm to 5:00am)Wellesley Street East (SH1) eastbound off-ramp, 15 August (approx. 10:00pm to 5:00am)Eastbound lanes between Wellesley Street East (SH16) off-ramp and Alten Road, 11 August (approx. 10:00pm to 5:00am)Grafton Road eastbound on-ramp, 11 August (approx. 10:00pm to 5:00am)Grafton Road eastbound on-ramp, 12-13 August (approx. 10:00pm to 5:00am)Westbound lanes between Stanley Street off-ramp and Hobson Street on-ramp, 12-13 August (approx. 10:00pm to 5:00am)SH16 (Port) westbound to SH1 northbound link, 12-13 August (approx. 10:00pm to 5:00am)SH16 (Port) westbound to SH1 southbound link, 12-13 August (approx. 10:00pm to 5:00am)Wellesley Street East westbound on-ramp, 12 -13 AugustWestbound lanes between Stanley Street off-ramp and Great North Road on-ramp, 15 August (approx. 10:00pm to 5:00am)SH1 southbound to SH16 westbound link, 15 August (approx. 10:00pm to 5:00am)Hobson Street (SH16) westbound on-ramp, 15 AugustSH1 northbound to SH16 westbound link, 15 August (approx. 10:00pm to 5:00am)SH16 (Port) westbound to SH1 northbound link, 15 August (approx. 10:00pm to 5:00am)SH16 (Port) westbound to SH1 southbound link, 15 August (approx. 10:00pm to 5:00am)Wellesley Street East (SH1) westbound on-ramp, 15 AugustSOUTHERN MOTORWAY (SH1)Northbound lanes between Drury/SH22 off-ramp and Redoubt Road on-ramp, 14-15 August (approx. 10:00pm to 5:00am)SH1 northbound to SH20 northbound link, 14-15 August (approx. 10:00pm to 5:00am)Hill Road northbound on-ramp, 14-15 AugustTakanini northbound on-ramp, 14-15 AugustPapakura (loop) northbound on-ramp, 14-15 AugustPapakura (Diamond) northbound on-ramp, 14-15 AugustDrury/SH22 northbound on-ramp, 14-15 AugustSouthbound lanes between Takanini off-ramp and Drury/SH22 on-ramp, 11-15 August (approx. 9:30pm to 5:30am)Takanini southbound on-ramp, 11-15 August (approx. 9:00pm to 5:30am)Papakura (Diamond) southbound on-ramp, 11-15 AugustPapakura (Loop) southbound on-ramp, 11-15 AugustNorthbound lanes between Drury/SH22 off-ramp and Takanini on-ramp, 13 AugustPapakura (loop) northbound on-ramp, 13 AugustPapakura (Diamond) northbound on-ramp, 13 AugustDrury/SH22 northbound on-ramp, 13 AugustNorthbound lanes between Bombay off-ramp and Papakura on-ramp, 11-12 August (approx. 10:00pm to 5:00am)Papakura (loop) northbound on-ramp, 11-12Papakura (Diamond) northbound on-ramp, 11-12 AugustDrury/SH22 northbound on-ramp, 11-12 AugustRamarama northbound on-ramp, 11-12 AugustBombay northbound on-ramp, 11-12 AugustSouthbound lanes between Ramarama off-ramp and Bombay on-ramp, 11-12 AugustRamarama northbound on-ramp, 11-12 AugustHampton Downs northbound off-ramp, 15 AugustNORTHWESTERN MOTORWAY (SH16)Hobsonville Road southbound on-ramp, 11-15 AugustSH16 eastbound link to SH20 southbound link (Waterview southbound tunnel closed), 12-13 AugustGreat North Road eastbound off-ramp (Waterview southbound tunnel closed), 12-13 AugustEastbound lanes between Great North Road off-ramp and Grafton Road on-ramp, 14 August (approx. 10:00pm to 5:00am)Great North Road eastbound on-ramp, 14 AugustSt Lukes Road eastbound on-ramp, 14 AugustSH16 westbound link to SH20 southbound link (Waterview southbound tunnel closed), 12-13 AugustSH16 westbound to SH20 southbound link, 15 August (approx. 10:00pm to 5:00am)St Lukes Road westbound on-ramp, 15 AugustNewton Road westbound on-ramp, 15 AugustSOUTHWESTERN MOTORWAY (SH20) Northbound lanes between Maioro Street off-ramp and SH16 links (Waterview northbound tunnel closed), 14-15 AugustSH20 northbound to SH16 westbound link (Waterview northbound tunnel closed), 14-15 AugustSH20 northbound to SH16 eastbound link (Waterview northbound tunnel closed), 14-15 AugustMaioro Street northbound on-ramp (Waterview northbound tunnel closed), 14-15 AugustNeilson Street northbound off-ramp, 12-14 August (approx. 10:00pm to 05:00am)Rimu Road northbound on-ramp, 12-14 AugustCoronation Road northbound off-ramp, 15 August